[USS] Store supports hosting multiple datatypes per database

sync/syncable/model_type.cc

Index: sync/syncable/model_type.cc
diff --git a/sync/syncable/model_type.cc b/sync/syncable/model_type.cc
index 1dba315e6f18526ba52178c2ef6daed5c9c55a89..caf7b81729539cabbc7eb6ae03b01f4cccadea69 100644
--- a/sync/syncable/model_type.cc
+++ b/sync/syncable/model_type.cc
@@ -693,6 +693,10 @@ std::string ModelTypeToRootTag(ModelType type) {
   return "INVALID";
 }
 
+const char* GetModelTypeRootTag(ModelType model_type) {
+  return kModelTypeInfoMap[model_type].root_tag;
+}
+
 bool RealModelTypeToNotificationType(ModelType model_type,
                                      std::string* notification_type) {
   if (ProtocolTypes().Has(model_type)) {
@@ -749,8 +753,4 @@ bool TypeSupportsOrdering(ModelType model_type) {
   return model_type == BOOKMARKS;
 }
 
-const char* ModelTypeToTag(ModelType model_type) {
-  return kModelTypeInfoMap[model_type].root_tag;
-}
-
 }  // namespace syncer